WebIn general these less fire resistant types of construction require either 2 hour or 1 hour fire ratings for exterior or interior bearing walls, Exterior noncombustible, non-load bearing walls having no fire rating or fire resistive protection are generally permitted at locations where the walls are separated from property lines and adjacent … WebTo determine a single STC for the wall system, first calculate the STC using both Equations 1 and 2, based on the combined weight of both wythes, then linearly interpolate between the two resulting STC ratings based on the relative weights of the wythes. Equation 2 is the STC equation for clay masonry (ref. 1):
UL Fire-Rated Westbrook Concrete Block
WebShaftwall System consists of 1" shaftliner panels supported by 2-1/2", 4" or 6" C-T Studs and faced on one side with two layers of 1/2" fire code board. Stairwall Systems are designed to enclose stairwalls, this system is … Web8. TWO HOUR FIRE RATED CHASE WALL Min. 2 ½" No. 25 gauge metal studs 16" o.c., 3/8" type “X” gypsum lath attached to studs each side with resilient clips, 3/4" perlite or vermiculate gypsum plaster; 1 ½" mineral fiber insulation 2.5 pcf. ½" gypsum lath ½" plaster, one layer ½" type “X” gypsum wallboard or one layer ½" veneer base ... pure beauty kirkcudbright
USG Design Studio Wall Assemblies
WebNov 19, 2014 · Retrofit an existing exterior wall to 1-hour rating - GreenBuildingAdvisor The complete source for building, designing, and remodeling green homes Community and Q&A Retrofit an existing exterior wall to 1-hour rating salarch Posted in Building Code Questions on November 19, 2014 01:00am WebAnswer: Generally, there are two types of 1-hour wood truss assemblies: the first is one layer GWB with metal furring strips or resilient channel, and the second is two layers … WebQUICK SELECTOR FOR FIRE AND SOUND RATED SYSTEMS COLUMN (10WF–49) 5 1 hr. UL X528 One layer of 1/2" (12.7 mm) Fire-Shield C Wallboard furred from column by 1 5/8" GA CM 1001 (41.3 mm) steel studs at each corner. 6 2 hr. UL X528 Base layer of 5/8" (15.9 mm) Fire-Shield Wallboard furred from column by 1 5/8" pure beauty hawera